Emasontweni ambalwa edlule ngibike ukuthi ungazivumela kanjani izivakashi zakho ukuthi zivule uhlelo lokusebenza lwefoni kumadivayisi eselula ngokuthepha inombolo yocingo. Manje sekuvele ukuthi kungenzeka kube khona ukuvimba i-SIM khadi ngokungenakuphikiswa noma ukusetha kabusha izilungiselelo zemboni ngaphandle kwesenzo somsebenzisi.
Isibonelo, i-PIN engalungile noma i-PUK ifakwa izikhathi ezimbalwa ngengxenyana yomzuzwana kusetshenziswa izixhumanisi ezikhethekile ezicashe cishe yonke indawo futhi ingafinyelelwa ngokuzenzakalelayo (izinkundla, ama-imeyili, i-SMS, amakhodi e-QR). Lokhu kuzovimba unomphela i-SIM khadi. Lokhu kufinyelelwa kusetshenziswa amakhodi okulawula ngokuvamile okuzodingeka athayiphe ngesandla kusetshenziswa ikhiphedi yezinombolo yohlelo lokudayela.
Ubuthakathaka buthinta uhlelo lokusebenza lwe-Google lwe-Android kuze kufike ku-Ice Cream Sandwich (inguqulo 4.0.x) — ikhambi elisekelwe kusofthiwe lenkinga ngesimo sokuvuselelwa kohlelo lokusebenza cishe akunakwenzeka kumafoni amaningi (ngenxa yezinqubomgomo zokuvuselelwa kwabakhiqizi!). Esikhundleni salokho, abasebenzisi kufanele basebenzise izinhlelo ezifana ne -G Data USSD Filter , ezitholakala mahhala ku-Android Market.